JP2002193432A - Powder and grain feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make uniform the distribution of conveying amount of powder and grain in the longitudinal direction of a conveyor belt with good accuracy. SOLUTION: This powder and grain feeder is provided with a conveyor belt 9 for conveying the dropped and fed powder and grain B and a scraping member 15 mounted on the conveyor belt and moving from the upper side to the upper course side in the conveying direction along an opposite moving path 14. In this feeder, the powder and grain conveyed by the conveyor belt is flattened in layer, with some of the powder and grain returned to the upper course side in the conveying direction by scraping to stay there by the movement of the scraping member toward the upper course side in the conveying direction, and conveyed and fed top the subsequent processor 13. The scraping member is provided to turn and move to the upper course side in the conveying direction along a rectilinear moving path separating to the upper side from the conveyor belt as it goes toward the upper course side in the conveying direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport belt for transporting a powdery material dropped and supplied, and a scraping member which moves upward in the transport direction along a moving path facing the transport belt from above. Is provided, and while the powder particles being conveyed by the conveyance belt are partly scraped back to the conveyance direction upper side by moving the scraping-back member toward the conveyance direction upper side and stay there, the layers are leveled. The present invention relates to a granular material supply device configured to be transported and supplied to a subsequent processing device.

[0002]

2. Description of the Related Art The above-mentioned powdery material supply device scrapes a part of the powdery and granular material being transported by a transport belt when the powdery material is layered and transported to a subsequent processing device. By moving back to the upstream side in the transport direction by moving it to the upstream side in the transport direction and staying on the transport belt, regardless of fluctuations in the supply amount of the granular material to the transport belt, The distribution of the transport amount in the longitudinal direction of the transport belt is made uniform so that the transport amount in the longitudinal direction of the transport belt can be suppressed from being excessive or insufficient. As shown in FIG. 3, in the conventional granular material supply device, a transport belt 9 that transports the granular material B dropped and supplied from the supply device 8 is provided, and a transport path 14 that faces the transport belt 9 from above is provided. A plurality of rollers 31, 32, 3 having a large number of scraping pins (not shown) erected on the outer peripheral surface thereof are moved to the scraping member 15 which is moved upward in the transport direction along the same direction.
The rollers 3, 32, 33, and 34 are rotated along the movement path 14 toward the upper side in the conveyance direction, and are formed on the conveyance belt 9. A part of the granular material B being conveyed is scraped back to the upper side in the conveying direction by a plurality of rollers 31, 32, 33, and 34, and is stagnated.
3 to be conveyed and supplied.

[0003]

For this reason, as shown by the phantom line in FIG. 3, when the supply amount of the granular material B from the supply device 8 is too large, the granular material B is The particles B are scraped up to the upper surface side of the roller 33, and the particles B are flattened in a layer on the lower side in the transport direction beyond the roller 31 (35).
In this case, in this case, the granular material B (3
5) There is a disadvantage that the distribution of the transport amount in the longitudinal direction of the transport belt becomes non-uniform. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and has as its object to accurately and uniformly distribute the distribution of the amount of powder and granular material transported in the longitudinal direction of the transport belt.

[0004]

According to a first feature of the present invention, there is provided a transport belt for transporting a powdery material dropped and supplied, and a transport direction along a moving path opposed to the transport belt from above. A scraping member that moves to the better side is provided,
The granular material being transported by the transport belt, a part of which is scraped back to the transport direction superior side by the movement of the scraping member to the transport direction upward side and stays, is leveled in layers, and the subsequent A powder and granular material supply device configured to be transported and supplied to a processing device, wherein the scraping-back member moves upward in the transport direction along a linear movement path that is further away from the transport belt toward the upper side in the transport direction. The point is that it is provided so as to rotate to the side. [Function] As the scraping-back member rotates upward in the transport direction along a linear movement path that is separated upward from the transport belt toward the upstream side in the transport direction, the granular material is moved by the scrape-back member. Along the path, the granular material is scraped back upward on the upstream side in the transport direction according to the supply amount of the granular material to the transport belt. [Effect] In accordance with the supply amount of the granular material to the transport belt, the greater the supply amount, the more the granular material can be scraped upward on the upper side in the transport direction. It is less likely to fall onto the lower layered powdery material, and the distribution of the transported amount of the powdery material in the longitudinal direction of the transport belt can be made uniform with high accuracy.

A feature of the invention according to claim 2 is that the scraping-back member is formed such that a front end of the scraping member facing the conveyor belt side in the moving path is linearly formed along the conveyor belt width direction. And a comb-shaped plate member formed in a comb-tooth shape in which the leading end portion is uneven along the width direction of the conveyor belt, and is alternately provided at intervals along the rotational movement direction. . [Function] By flattening the upper surface of the layer of the retained particulate material staying on the upstream side in the transport direction by rotating the flat plate material toward the upstream side in the transport direction, scraping the powder particles upward on the upstream side in the transport direction. It can be returned, and by rotating the comb-shaped plate material to the upper side in the transport direction,
While scraping back the powdery material of the staying powdery material layer flattened by the flat plate material to the upper side in the conveying direction at the comb teeth portion, the powdery material being scraped back is passed through the gap between the comb tooth portions, Can be discharged to the rear side in the moving direction. [Effect] While flattening the upper surface of the staying powder particle layer with a flat plate material, the powder particles are dispersed in the width direction of the transport belt with a comb-like plate material, and the width of the transport belt of the powder particles of the staying powder particle layer is dispersed. The distribution in the direction can be made uniform.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, portions denoted by the same reference numerals as those of the conventional example indicate the same or corresponding portions. FIG. 1 shows a granular material supply facility A provided in a facility for manufacturing a cement tile (an example of a plate-like building material). The cement main body in which an aggregate such as sand and a filler are mixed with cement in a predetermined ratio. Material, a fibrous material such as pulp, an additive such as silica, and water in a predetermined ratio are stirred and mixed at a predetermined ratio. The belt 1 is supplied by dropping.

[0007] The above-mentioned powder-particle supply equipment A is a powder-particle adjusting apparatus for adjusting a powder B for molding by adding water to a raw powder mixed with a cement main material, a fiber material and an additive. And a powder / particle dispersing device 5 for dispersing the powder B for molding adjusted by the powder / particle adjusting device 4 on the conveying belt 1 for molding in a layer having a substantially constant thickness.

The granule dispersing device 5 receives the forming granules B dropped and supplied from the granule adjusting device 4 on the transporting belt 6 for diffusion, and transports it while pushing and spreading it in the width direction of the transporting belt. Diffusion conveyance device (an example of a supply device) 8 and the forming granular material B dropped and supplied wide from the diffusion conveyance device 8 are received on the leveling conveyance belt 9, and a part thereof is placed on the upper side in the conveyance direction. The powder and granular material supply device 10 according to the present invention, which is conveyed in a layered manner while being scraped back and retained, and the molding and granular material B dropped and supplied from the powder and particle supply device 10 are unclamped by a number of loosening blades. It is received between two opposing loosening rollers 11 provided on the outer peripheral surface, and the driving rotation of the loosening rollers 11 in opposite directions causes the forming powder B formed in the forming powder B to be formed. The loosening device 12 that loosens the lump (dama) finely For example, and applied at a substantially uniform predetermined thickness of the molding granular material B passing through the device 12 loosening on the molding conveyor belt 1, the press molding device 13 and cutting device
(Not shown).

As shown in FIG. 2, the powder and granular material supply device 10 includes a scraping member 15 that moves upward in the transport direction along a movement path 14 that faces the leveling transport belt 9 from above. The reclaiming device 16 provided is provided, and a part of the molding granular material B being transported by the leveling transport belt 9 is moved upward by the retraction member 15 in the transport direction. While being scraped back and staying, the distribution of the transport amount of the granules for molding B in the transport belt width direction is almost uniform, is transported evenly in a layer having a predetermined thickness and a predetermined density, and is used for scraping. A number of protrusions 17 are provided on the outer peripheral surface of a scraping roller 18 provided above the transport end side of the leveling transport belt 9 to scrape the forming powder B which has been leveled and transported. Forcibly scraped off by the drive rotation of the dropping roller 18, Are so as to please.

The scraping member 15 includes an electric motor 19
The tip 23 facing the leveling conveyor belt 9 side on the moving path 14 is conveyed to the pair of drive rotatable left and right chains 22 wound around the driving sprocket 20 and the driven sprocket 21 driven by A flat plate member 24 formed linearly along the belt width direction, and a comb-shaped plate member 26 formed in a comb-like shape with a leading end portion 25 uneven in the conveying belt width direction in the rotational movement direction. They are provided alternately at intervals along the structure.

[0011] Then, when the chain 22 is driven and rotated, the upper side in the transport direction is rotated upward in the transport direction along a linear movement path 14 that is separated upward from the leveling transport belt 9 to move the flat plate material. With the rotational movement of the 24 to the upper side in the transport direction,
While flattening the upper surface of the staying powder granule layer 27 staying on the upstream side in the transport direction, the molding powder B is scraped back upward on the upstream side in the transport direction, and the comb-like plate member 26 is moved upward on the transport direction. While the powder B for molding of the staying powder granule layer 27 flattened by the flat plate member 24 is scraped back upward by the comb teeth portion 28 in the conveying direction, the molding powder being scraped back is rotated. Granule B
Is passed through the gap 29 between the comb teeth portions 28 to pass through the comb-like plate 26
It is provided so as to be ejected to the rear side in the moving direction.

The powdery granules B exceeding the amount that can be retained on the upstream side in the transport direction are naturally dropped onto the screw conveyor 30 from the transport side of the leveling transport belt 9, and the powder and granular material adjusting device 4 is used. It is configured so that it can be recirculated and reused as a forming raw material.

[Other Embodiments] The granular material supply device according to the present invention may be configured to drop and supply the granular material to the transport belt by an arbitrary supply method, for example, by dropping and supplying the granular material from the hopper to the transport belt. 2. The powder and granular material supply device according to the present invention is provided with a rotating belt having substantially the same width as the transport belt so as to be rotatable and movable to the upper side in the transport direction along a movement path facing the transport belt from above,
The scraping member may be fixed to the rotating belt so as to scrape the powder toward the upper side in the transport direction. 3. The powder and granular material supply device according to the present invention is configured such that, besides the powder and granular material serving as a raw material for forming a cement roof, the powder and granular material having an arbitrary composition and properties are leveled in a layered form and conveyed to a subsequent processing device. You may have.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a granular material supply facility.

FIG. 2 is a perspective view of a granular material supply device.

FIG. 3 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 B Granular Material 9 Conveying Belt 13 Subsequent Processing Device 14 Movement Path 15 Scavenging Member 23 Tip 24 Flat Plate 25 Tip 26 Comb-like Plate

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Takeshi Tokunaga 2-1, Takamatsu, Kosai-cho, Koga-gun, Shiga Prefecture F-term in Kubota Shiga Plant (reference) AA02 AC02 CA02 CA09 4G068 AA02 AB22 AD29 AF31

Claims (2)

[Claims] 1. A transport belt for transporting a powdery material dropped and supplied, and a scraping-back member moving upward in the transport direction along a movement path facing the transport belt from above, the transport belt being provided. The particles being conveyed in the above, a part of the particles is scraped back to the upper side in the conveying direction by the movement of the scraping member toward the upper side in the conveying direction, and is stagnated. A powder material supply device configured to be transported and supplied, wherein the scraping member is turned upward in the transport direction along a linear movement path that is more upwardly away from the transport belt in the transport direction. A powder and granular material supply device that is provided so as to move. 2. A scraper comprising: a flat plate member having a tip portion facing the transport belt side in the moving path formed linearly along a transport belt width direction; 2. The powdery and granular material supply device according to claim 1, wherein a comb-like plate member formed in a comb-tooth shape having irregularities along the direction is provided alternately at intervals along the rotational movement direction.